merrythought            (Brit.) the wishbone of a fowl.
abaptiston              a trephine with a conical saw.
marcescent              (bot.) withering without falling off.
rutilant                shedding reddish light.
xyster                  a surgical tool used for scraping bones.
kibble                  to form into coarse pellets.
rongeur                 a forceps used to gouge out bone tissue.
kerf                    the gap left by a saw.
cicatrix                scar; the tissue which will form a scar.
furcula                 the wishbone of a bird; the forked appendage
                        with which a springtail springs.